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Finding the Fourth Proportional to 180,622.51, 249,261.05 and 100,051.30

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Solution

The fourth proportional to 180,622.51, 249,261.05 and 100,051.30 is: 138,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,622.51 : 249,261.05 = 100,051.30 : x
  2. Step 2: Convert to fraction form
    180,622.51/249,261.05 = 100,051.30/x
  3. Step 3: Cross multiply
    180,622.51x = 249,261.05 × 100,051.30
  4. Step 4: Simplify right side
    180,622.51x = 24,938,892,090.78
  5. Step 5: Solve for x
    x = 24,938,892,090.78/180,622.51
  6. Step 6: Final answer
    x = 138,071.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.